package com.lky.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.lky.reggie.common.R;
import com.lky.reggie.dto.DishDto;
import com.lky.reggie.pojo.Category;
import com.lky.reggie.pojo.Dish;
import com.lky.reggie.pojo.DishFlavor;
import com.lky.reggie.service.CategoryService;
import com.lky.reggie.service.DishFlavorService;
import com.lky.reggie.service.DishService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;

/**
 * @author shkstart
 * @Description
 * @date 2023-01-06-15:45
 */
//菜品管理
@RestController
@RequestMapping("/dish")
@Slf4j
public class DishController {

    @Autowired
    private DishFlavorService dishFlavorService;

    @Autowired
    private DishService dishService;

    @Autowired
    private CategoryService categoryService;


    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 新增菜品
     * @param dishDto
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody DishDto dishDto)
    {
        log.info(dishDto.toString());
        dishService.saveWithFlavor(dishDto);

        //清理所有的菜品的缓存数据
//        Set keys = redisTemplate.keys("dish_*");

        //清理某个分类下的菜品缓存数据
        String key="dish_"+dishDto.getCategoryId()+"_1";
        redisTemplate.delete(key);
        return R.success("新增菜品成功");
    }


    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name)
    {
        //分页构造器
        Page<Dish> page1=new Page<>(page,pageSize);
        Page<DishDto> page2=new Page<>();
//        条件构造器
        LambdaQueryWrapper<Dish> queryWrapper=new LambdaQueryWrapper<>();
        //过滤条件
        queryWrapper.like(name!=null,Dish::getName,name);
        //排序条件
        queryWrapper.orderByDesc(Dish::getUpdateTime);
//执行分页查询
        dishService.page(page1,queryWrapper);

        //对象拷贝
        BeanUtils.copyProperties(page1,page2,"records");
        List<Dish> records = page1.getRecords();

        List<DishDto> list=records.stream().map((item)->{
            DishDto dishDto = new DishDto();

            BeanUtils.copyProperties(item,dishDto);
            Long id = item.getCategoryId();//分类id
            //根据id查询分类对象
            Category byId = categoryService.getById(id);
          if(byId!=null)
          {
              String name1 = byId.getName();
              dishDto.setCategoryName(name1);
          }
            return dishDto;
        }).collect(Collectors.toList());


        page2.setRecords(list);

        return R.success(page2);
    }

    /**
     * 根据id查询菜品信息对应的口味信息
     * @return
     */
    @GetMapping("/{id}")
    public R<DishDto> get(@PathVariable("id") Long id)
    {
        DishDto dishDto = dishService.getByIdWithFlavor(id);

        return R.success(dishDto);
    }

    /**
     * 修改菜品
     * @param dishDto
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody DishDto dishDto)
    {
        log.info(dishDto.toString());

        dishService.updateWithFlavor(dishDto);

        //清理所有的菜品的缓存数据
//        Set keys = redisTemplate.keys("dish_*");

        //清理某个分类下的菜品缓存数据
        String key="dish_"+dishDto.getCategoryId()+"_1";
        redisTemplate.delete(key);

        return R.success("修改菜品成功");
    }

    /**
     * 删除菜品
     * @param ids
     * @return
     */
    @DeleteMapping
    public R<String > delete( Long ids)
    {
        dishService.removeById(ids);


        return R.success("菜品删除成功");
    }

    @PostMapping("/status")
    public R<String> tingshou(@PathVariable("ids") Long ids)
    {
            return null;
    }

//    /**
//     * 根据条件查询对应的菜品数据
//     * @param dish
//     * @return
//     */
//    @GetMapping("/list")
//    public R<List<Dish>> List(Dish dish)
//    {
//        LambdaQueryWrapper<Dish> queryWrapper=new LambdaQueryWrapper<>();
//        queryWrapper.eq(dish.getCategoryId()!=null,Dish::getCategoryId,dish.getCategoryId());
//
//        queryWrapper.eq(Dish::getStatus,1);//为起售状态的菜品
//        queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);
//
//        List<Dish> list = dishService.list(queryWrapper);
//
//        return R.success(list);
//    }

    /**
     * 根据条件查询对应的菜品数据
     * @param dish
     * @return
     */
    @GetMapping("/list")
    public R<List<DishDto>> List(Dish dish)
    {List<DishDto> dishDtos=null;

        //动态构造key
        String key="dish_"+dish.getCategoryId()+"_"+dish.getStatus();//dish_2861717272892_1

        //先从reids中获取缓存数据
        dishDtos= (List<DishDto>) redisTemplate.opsForValue().get(key);

        if (dishDtos != null) {
            //如果存在，直接返回，无需查询数据库
            return R.success(dishDtos);
        }

        //构造查询条件
        LambdaQueryWrapper<Dish> queryWrapper=new LambdaQueryWrapper<>();
        queryWrapper.eq(dish.getCategoryId()!=null,Dish::getCategoryId,dish.getCategoryId());

        queryWrapper.eq(Dish::getStatus,1);//状态1为起售状态的菜品
        //添加排序条件
        queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);

        List<Dish> list = dishService.list(queryWrapper);

        dishDtos=list.stream().map((item)->{
            DishDto dishDto = new DishDto();

            BeanUtils.copyProperties(item,dishDto);
            Long id = item.getCategoryId();//分类id
            //根据id查询分类对象
            Category byId = categoryService.getById(id);
            if(byId!=null)
            {
                String name1 = byId.getName();
                dishDto.setCategoryName(name1);
            }

            //当前菜品的id
            Long dishId = item.getId();
            LambdaQueryWrapper<DishFlavor> queryWrapper2=new LambdaQueryWrapper<>();
            queryWrapper2.eq(DishFlavor::getDishId,dishId);
            //select * from dish_flavor where dish_id=?
            List<DishFlavor> list1 = dishFlavorService.list(queryWrapper2);
            dishDto.setFlavors(list1);
            return dishDto;
        }).collect(Collectors.toList());

        //如果不存在，需要查询数据库，将查询到的数据缓存到redis
        redisTemplate.opsForValue().set(key,dishDtos,60, TimeUnit.MINUTES);

        return R.success(dishDtos);
    }
}
